Mercury Trapped-Ion Frequency Standard for the Global Positioning System

R. L. Tjoelker, E. Burt, S. Chung, R. Glaser, R. Hamell, L. Lim, L. Maleki, J. D. Prestage, N. Raouf, T. Radey, C. Sepulveda, G. Sprague, B. Tucker, B. Young

Abstract:	We report on progress towards the development of a small, low-mass and -power, high-stability mercury trapped-ion frequency standard for the Global Positioning System. The design performance goal is a frequency stability reaching into the range using technologies that allow for more than 10 years of continuous operational life. Key features include using a multi-pole ion trap to minimize sensitivity to ion-number-dependent effects and a nitrogen buffer gas for long vacuum pump life. The development program is structured in three phases with the goal of gaining early flight experience and keeping development costs in check.
Published in:	Proceedings of the 33th Annual Precise Time and Time Interval Systems and Applications Meeting November 27 - 27, 2001 Hyatt Regency Long Beach Long Beach, California
Pages:	45 - 54
Cite this article:	Tjoelker, R. L., Burt, E., Chung, S., Glaser, R., Hamell, R., Lim, L., Maleki, L., Prestage, J. D., Raouf, N., Radey, T., Sepulveda, C., Sprague, G., Tucker, B., Young, B., "Mercury Trapped-Ion Frequency Standard for the Global Positioning System," Proceedings of the 33th Annual Precise Time and Time Interval Systems and Applications Meeting, Long Beach, California, November 2001, pp. 45-54.
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